Magnetic hysterysis evolution of Ni-Al alloy with Fe and Mn substitution by vacuum arc melting to produce the room temperature magnetocaloric effect material

Journal Article · Fri Jun 17 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4953944· OSTI ID:22609108

Notonegoro, Hamdan Akbar ^[1]; Kurniawan, Budhy; Manaf, Azwar ^[1]; Setiawan, Jan ^[2]

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1. PPS Materials Science, FMIPA-Universitas Indonesia, Depok 16424 (Indonesia)
2. Center for Nuclear Fuel Tecnology-Badan Tenaga Atom Nasional, Tangerang Selatan 15310 (Indonesia)

The development of magnetocaloric effect (MCE) material is done in order to reduce the damage of the ozone layer caused by the chlorofluorocarbons (CFCs) emitted into the air. The research dealing with synthesis of magnetocaloric materials based of Ni-Al Heusler Alloy structure and by varying substitution some atoms of Ni with Fe and Al with Mn on Ni-Al Heusler Alloy structure to become Ni{sub 44}Fe{sub 6}Mn{sub 32}Al{sub 18}. Vacuum Arc Melting (VAM) equipment is used to form the alloys on vacuum condition and by flowing argon gas atmosphere and then followed by annealing process for 72 hours. X-Ray Diffraction (XRD) reveals that crystallite structure of material is observed. We define that Ni{sub 44}Fe{sub 6} as X{sub 2}, Mn{sub 25} as Y, and Al{sub 18}Mn{sub 7} as Z. Based on the XRD result, we observed that the general formula X{sub 2}YZ is not changed. The PERMAGRAF measurement revealed that there exists of magnetic hysterysis. The hysterysis show that the magnetic structures of the system undego evolution from diamagnetic to soft ferromagnetic material which all of the compound have the same crystallite structure. This evolution indicated that the change in the composition has led to changes the magnetic composition. Mn is the major element that gives strong magnetic properties to the sample. When Mn partially replaced position of Al, the sample became dominant to be influenced to improve their magnetic properties. In addition, substitution a part of Ni by Fe in the composition reveals a pinning of the domain walls in the sample.

• OSTI ID: 22609108
• Journal Information: AIP Conference Proceedings, Vol. 1746, Issue 1; Conference: ICPR 2016: International conference on physics and applied physics research, Yogyakarta (Indonesia), 25-26 Jan 2016, ICIBio 2016: International conference on industrial biology, Yogyakarta (Indonesia), 25-26 Jan 2016, ICIAMath 2016: International conference on information system and applied mathematics, Yogyakarta (Indonesia), 25-26 Jan 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM ALLOYS
ANNEALING
ATMOSPHERES
DAMAGE
EMISSION
EQUIPMENT
FERROMAGNETIC MATERIALS
HEUSLER ALLOYS
IRON ALLOYS
MAGNETIC PROPERTIES
MANGANESE ALLOYS
MELTING
NICKEL ALLOYS
OZONE LAYER
SYNTHESIS
TEMPERATURE RANGE 0273-0400 K
THERMODYNAMIC PROPERTIES
X-RAY DIFFRACTION